228 Agathe
| Discovery [1] | |
|---|---|
| Discovered by | J. Palisa |
| Discovery site | Vienna Observatory |
| Discovery date | 19 August 1882 |
| Designations | |
| 228 Agathe | |
Named after | daughter of astronomer Theodor v. Oppolzer[2] |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 109.66 yr (40,053 days) |
| Aphelion | 2.7341 AU |
| Perihelion | 1.6685 AU |
| 2.2013 AU | |
| Eccentricity | 0.2420 |
| 3.27 yr (1192.9 days) | |
| 238.36° | |
| Inclination | 2.5365° |
| 313.36° | |
| 19.096° | |
| Earth MOID | 0.6582 AU |
| Physical characteristics | |
| Dimensions | 9.3 km |
| 6.484 h | |
| 0.2082 | |
| B–V = 0.918 U–B = 0.596 S (Tholen), S (SMASS) | |
| 12.48 | |
228 Agathe is a stony main belt asteroid, about 9 kilometers in diameter. It was discovered by Johann Palisa on August 19, 1882 at Vienna Observatory, Austria. Photometric observations during 2003 showed a rotation period of 6.48 ± 0.01 hours with a brightness variation of 0.27 ± 0.03 in magnitude. An earlier study yielded results that are consistent with these estimates.[3]
Agathe was named after the youngest daughter of Austrian astronomer Theodor von Oppolzer (1841–1886), professor of astronomy in Vienna.[2]
References
- ^ a b "JPL Small-Body Database Browser: 228 Agathe" (2015-06-18 last obs.). Jet Propulsion Laboratory. Retrieved October 2015.
{{cite web}}: Check date values in:|accessdate=(help) - ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (228) Agathe. Springer Berlin Heidelberg. p. 35. ISBN 978-3-540-29925-7. Retrieved October 2015.
{{cite book}}: Check date values in:|accessdate=(help) - ^ Cooney, Walter R., Jr. (March 2005), "Lightcurve results for minor planets 228 Agathe, 297 Caecilia, 744 Aguntina 1062 Ljuba, 1605 Milankovitch, and 3125 Hay", The Minor Planet Bulletin, 32 (1): 15–16, Bibcode:2005MPBu...32...15C.
{{citation}}: CS1 maint: multiple names: authors list (link)
External links
- Dictionary of Minor Planet Names, Google books
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- 228 Agathe at the JPL Small-Body Database
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